JPH02307467A - Air bubble generating bathtub - Google Patents

Abstract

PURPOSE:To enjoy various different blow forms and to enhance safety at the time of bathing by perfectly eliminating the possibility of an electric shock accident by using an air motor as a drive apparatus driving a recirculation pump. CONSTITUTION:In an air bubble generating bathtub, a pump driving apparatus M for driving a recirculation pump P is constituted of an air motor. The pump driving apparatus M consists of the air motor 42 whose output shaft 40 is connected to the impeller mounting shaft 41 of the recirculation pump P, the compressor 43 sapplying compressed air to said air motor 42 and the engine 44 driving said compressor 43. The compressor 43 is operated to generate compressed air in the compressor 43 to feed the same to the air motor 42 under pressure to operate said air motor 42 and the recirculation pump P is driven to eject bath hot water mixed with air bubbles into the bathtub main body 1. The number of rotations of the recirculation pump P is freely controlled by the control signal from the control part C to make it possible to freely control the jet pressure or amount of the bath hot water mixed with air bubbles and a bathing person can enjoy various different blow forms. An electric shock accident is perfectly eliminated and safety at the time of bathing is enhanced.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field The present invention relates to a bubble-generating bathtub that is highly safe during bathing.

(B) Conventional technology Conventionally, as one form of bathtub, there is a bubble-generating bathtub that is equipped with a bubble-generating device separate from the bathtub body, and the bubble-generating bathtub uses the bubble-generating device to generate bubbles in the bathtub. As a result, the air bubbles can be used to massage the body, increasing the pleasure of bathing.

That is, such a bubble-generating bathtub is provided with a spout on the side wall of the bathtub body, a circulation pump that circulates bath water via a circulation pump is connected to the spout, and an ejector effect is installed near the spout. An air suction unit is installed that allows air to be mixed into the bath water.

With this configuration, by operating the circulation pump, bath water can be spewed out from the spout on the side wall of the bathtub body, and at the time of spouting, air is sucked under negative pressure from the air suction part and poured into the bath water. By mixing air and ejecting air-mixed bath water from the spout, bubbles are generated in the bathtub and applied to the body of the bather, thereby increasing the pine surge effect.

In recent years, as described in Utility Model Application No. 63-100035, the ejection force of bath water can be changed periodically by controlling an electric motor used as a pump drive device for driving a circulation pump using an inverter. Products that can do this have also been developed.

(c) Problems to be Solved by the Invention However, the above-mentioned bubble-generating bathtub still had the following drawbacks.

That is, in the bubble-generating bathtub described above, an electric motor is used as a drive device for the circulation pump used to circulate the bath water, considering its convenience.

However, the circulation pump is connected to the bathtub body via a bathwater circulation flow path.

Therefore, if the insulation of the electric motor or circulation pump is insufficient, bathers may receive an electric shock, which is extremely dangerous.

In particular, when the electric motor is controlled by an inverter in order to change the amount and pressure of the bath water, the danger to the human body increases due to the high frequency components.

An object of the present invention is to provide a bubble-generating bathtub that can solve the above problems.

(d) Means for Solving the Problems The present invention provides a bath water circulation flow path consisting of a bath water suction flow path and a bath water forced flow path between the bathtub body and the circulation pump, and An air intake part is connected in communication with the hot water forced flow channel, and the air taken in by the air intake part is mixed into the bath water in the bath water suction channel, and the air bubbles are mixed into the bathtub body from each spout nozzle. This invention relates to a bubble-generating bathtub capable of spouting hot water, characterized in that an air motor is used as a drive device for driving the circulation pump.

The invention also provides for connecting an air motor to a compressor;
Another feature is that the drive section of the compressor is controlled by a control signal from a control device, and the rotation speed of the air motor is variable.

(e) Functions and Effects In the present invention, by controlling the drive device of the compressor that supplies compressed air for operation to the air motor by a control device, the jetting pressure and jetting amount of the bubble-mixed bath water can be freely changed. You can enjoy various different blow styles.

Further, since the circulation pump is configured to be driven by an air motor, the possibility of electric shock caused by the electric motor can be completely eliminated, and safety during bathing can be improved.

(F) Example Hereinafter, the bubble-generating bathtub A according to the present invention will be specifically explained with reference to the example shown in the attached drawings.

FIGS. 1 and 2 show the overall structure of the bubble-generating bathtub A. The bubble-generating bathtub A has foot-side spouts on the front and rear walls and left and right side walls of the bathtub body 1, which is formed into a box shape with an opening on the top. Nozzle 2. An Sl side jet nozzle 3 and an a side jet nozzle 4 are provided.

The bathtub body 1 has a flange-shaped edge 1 having a constant width on the periphery.
a, and an air intake portion 5 is provided on the same edge portion 1a.

Further, the air intake portion 5 is provided with an air bubble amount adjustment valve Va and a motor gate 2 for driving a valve body for air bubble amount adjustment that drives the air bubble amount adjustment valve Va.

In addition, the bubble-generating bathtub A is provided with a pump protection case 9 on the outer periphery of the bathtub body 1, and inside the case 9, as shown in FIGS. A circulation pump P that circulates the bath water, a filter R that filters the bath water circulated by the circulation pump P, a pump drive device M that drives the pump P, and a nozzle that will be described later. A motor for driving the valve body forward and backward, a motor M2 for driving the valve body for adjusting the amount of air bubbles, and a control unit C that controls the driving of the electric three-way valve Q are provided.

Note that the port 1 is a waste pipe for discarding a portion of the bath water during backwashing.

A bath water circulation channel is interposed between the bathtub body 1 and the circulation pump P, as shown in FIG. 3.

That is, the bath water circulation flow path includes a bath water suction vibe (bath water suction flow path) 10 for sending bath water from the bubble generating bathtub A to the circulation pump P, and a bath water suction vibe (bath water suction flow path) for sending bath water from the bubble generating bathtub A to the circulation pump P. It consists of a bathtub bullet sending vibe (bathtub bullet sending channel) 11 for sending hot water.

The bath water suction vibrator 10 has one end opened at the bottom of the bathtub body 1 to form a suction port 22, and the other end communicates with the water supply port of the circulation pump P to supply bath water to the circulation pump P. I try to inhale it.

On the other hand, the bath water bullet feed pipe 11 has one end connected to the circulation pump P.
The other end is connected to the spout nozzle 2°3.4 on the foot side, ventral side, and dorsal side, respectively.

Further, as shown in FIG. 3, the pump driving device M of the circulation pump P is equipped with a rotation speed detection sensor 6 that detects the rotation speed of the circulation pump P, and the detection output from the detection sensor 6 is It is sent to a control section C, which will be described later, and the rotation speed of the circulation pump P is controlled by the control section C.

Furthermore, as shown in FIG. 3, a pressure detection sensor 12 for detecting the pressure of the bath water being force-fed into the bath water vibrator 11 is attached to a midway portion of the bath water bullet-feeding vibrator 11, as shown in FIG. Then, a detection signal from the pressure detection sensor 12 is sent to a control section C, which will be described later, and the control section C controls the ejection pressure of the bath water ejected from each ejection nozzle 2, 3.4 of the pump drive device M. Control is performed by changing the rotational speed and the position of the valve body for adjusting the amount of ejection from each of the leg side, dorsal side, and ventral side ejection nozzles 2, 3.4.

Further, the pressure detection sensor 12 can also be used as a water level sensor for detecting the amount of bath water in the bathtub body 1.

These jet nozzles 2, 3.4 each use a jet volume automatic adjustment jet nozzle having the same structure and configured to be able to automatically change the jet volume and jet pressure of bath water.

Further, as shown in FIG. 3, an intake vibe 5a from an air intake section 5 is connected to the jet nozzles 2, 3.4.

Then, using the ejector effect by the ejector pressure generated by operating the circulation pump P, air is mixed into the bath water via the suction vibrator 5a, and the bath water mixed with air bubbles is ejected from the jet nozzles 2, 3.4. You can squirt more.

Next, the configuration of the control section C for controlling the pump drive device M and the foot, dorsal, and ventral jet nozzles 2, 3.4 will be explained.

The control unit C includes a microprocessor M as shown in FIG.
PU and input/output interface 13.14 and ROM and I? It consists of a memory 15 made of AM and a timer 16.

In the above configuration, the input interface 13
The rotation speed detection sensor 6 detects the rotation speed of the circulation pump P, the valve body reference position detection sensor 17 detects the opening/closing amount of the valve body for controlling the amount of ejection, and the valve standard detecting sensor 17 detects the opening/closing amount of the bubble amount adjusting valve. The position detection sensor 18 , the pressure detection sensor 12 that detects the water pressure of the bath water delivery pipe 11 , the bath water temperature detection sensor T that detects the temperature of the bath water in the bathtub body 1 , and the infrared drive signal from the remote controller 20 are detected. A light receiving section 21 which also serves as an operation section for receiving data is connected.

Note that in this embodiment, the light receiving section 21 is connected to the air intake section 5.
is placed above.

On the other hand, the output interface 14 is connected to a pump driving device M, a motor M1 for driving the nozzle valve body forward and backward, a motor gate 2 for driving the valve body for controlling the amount of air bubbles, and an electric three-way valve Q.

The memory 15 also stores the pump driving device M, the motor gate 1 for driving the valve body for the nozzle, and the motor gate 1 for adjusting the amount of air bubbles based on the output signals from the above-mentioned sensors and the drive signal from the remote controller 20. A drive order program for driving the valve body drive motor i2 and the drive section of the electric three-way valve Q is stored.

The bubble generating bathtub A mentioned above is disclosed in Japanese Patent Application No. 63--331.
A configuration similar to that described in No. 772 may be used.

The present invention provides a pump driving device M for driving a circulation pump P in a bubble generating bathtub A configured as described above.
Specifically, as conceptually shown in FIG.
is an air motor 42 whose output shaft 40 is connected to the impeller mounting shaft 41 of the VIi ring pump P;
It consists of a compressor 43 that supplies compressed air to the engine, and an engine 44 such as an internal combustion engine that drives the compressor 43.

With this configuration, by driving the engine 44, the compressor 43 is actuated to cause the compressor 43 to generate compressed air, and the compressed air is sent under pressure to the air motor 42, and the air motor 42 is driven, thereby driving the circulation pump P. Then, the bath water mixed with air bubbles can be spouted into the bathtub body 1.

Thus, in this embodiment, the engine 44, which is a drive device for the compressor 43 that supplies compressed air for operation to the air motor 42, is connected to the control device C, as shown in FIG.

Therefore, the output of the engine 44, that is, the output of the compressor 43 - the output of the air motor 42 - the output of the circulation pump P, that is, the rotation speed, is freely controlled by the control signal from the control device C, and the bubbly bath water is spouted. The pressure and amount of ejection can be changed freely, and the bather can use various blow types (for example, the mild blow described in Japanese Patent Application No. 63-331772, the acupressure blow, the 7-surge blow, etc.)
can be enjoyed.

Moreover, since the i[pump P is configured to be driven by the air motor 42, the possibility of electric shock caused by the electric motor can be completely eliminated, and safety during bathing can be improved.

In addition, as a driving means for the compressor 43, there are other methods such as
An electric motor or the like can also be used.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the bubble-generating bathtub of the present invention, FIG. 2 is a plan view of the same bathtub, FIG. 3 is a block diagram of the bubble-generating bathtub, and FIG.
The figure is a conceptual configuration explanatory diagram of a pump drive device. (A): Bubble generating bathtub (P): Circulation pump (D): Bath water circulation flow path (2) (3) (4): Spray nozzle (42): Air motor (43): Compressor (44): Engine

Claims (1)

[Claims] 1. A bath water circulation flow path consisting of a bath water suction flow path and a bath water forced flow path is interposed between the bathtub body and the circulation pump, and the bath water forced flow flow path is The air intake parts are connected in communication, and the air taken in by the air intake parts is mixed into the bath water in the bath water forced flow path, so that the bath water mixed with air bubbles can be spouted from each jet nozzle into the bathtub body. A bubble-generating bathtub characterized in that a pump driving device for driving the circulation pump is an air motor. 2. Connect the air motor to the compressor, and control the drive section of the compressor by a control signal from the control device,
2. The bubble-generating bathtub according to claim 1, wherein the air motor has a variable rotational speed.